Internal-combustion engine.



L. E. VIARD'.

INTERNAL GOMBUSTIDN ENGINE.

APPLIOATION FILED TBB. 3. 1912.

Patented Mar. 24, 19M.

. lmgs 'fOr the sihnusl: ff 'fh -f'r pist@ is provided M l its with openings ih@ limit respecti vdi);

- 1 Ju and. m1 f" .Y Aai spring: the

umm? und 1' 10mi with 1g@ @murs Hw, :space l@ is als?) uppar and. j, Z,

ide@ with charge bei g' thel mie if so :la a 3,0." said spa@ t? afnilrfm'1-- which .L llc-mi about the end of seid downstrokethe spark will be produced at the plug b/igniting the el'iarge und driving, the piston upwardly, which piston in such upward movement will compress the new charge drawn in through 4port on the previous downstrolte of the /z, y', arranged respectively above and below 'the admission port, of a hollow piston arranged within the cylinder and provided with two ports Z, lm, which, when the piston is at the end of its upward stroke will. coincide with theexhaust port and the port j, respectively, and the port a', at the same time being covered by the piston, u connection be-v tween the ports It and j, e fixed abutment arranged within the piston and constituting an internal guide for the lat-ter, a, spar-li plug carried by the bead olthe piston, a terminal carried by the head the cylinder, and an electric connection between the said plugr and terminal.

2. in an interne] combustion engine of the character described, the combination with e cylinder provided with an exhaust port c, an admission port c', sind two other ports it, j, arranged resoectively above and below the admission p of a hollow piston arranged within the cylinder and provided with -vo ports Z, m, which, when the piston is at the end of its upward stroke will coineide with the exhaust port and the port j, respectively, und the port z' at the saine time being covered by the piston, a connection between the ports It and j, a fixed abutment. arranged. within the piston and constituting :in internal guide :tor the latter, a spark plug carried by the head of the pist-on, a terminal carried by' the head of the cylinder, un electric lconnection between the spark plug und terminal, and a spring-pressed cylindrical member arranged within the port and bearing against the external well of the piston.

3. In an internal combustion engine of thecharacter described, Vthe combination with n cylinder provided with an exhaust port e, an admission port 4z', and two other ports h, y', arrangedespectively above and below the admission port., of a hollow7 piston arranged within the cylinder and provided with two ports l, m, which, when the piston is at the end of its upward or power strokeA will coincide respectively with the exhaust port and the port j, and theport a, at the same time being covered by the piston, e connection between the ports lg, and j, a xed rabutment arranged within the piston and constituting an internal guide-for the latter, said abutment being provided with diametrieally opposite slots, a wrist-pin having bearings in the piston and adapted to reciprecate 1n the saidfslots, and e. connecting rod pivotally 'mountedon the wrist-.pin.

In testimony whereof I uliix my signature in presence of two witnesses.

Louis Etienne-visse. i

llitnesses t VICTOR Meneer,

EDMUND' LECONTURIER. 

